Latest MegaDrum firmware version

[r0bbie]

I know I don't like reading manuals so it could be me, but, is this fact about "saved only upon the exit from the menu" that I found out the hard way documented somewhere?

It is mentioned for some settings in http://www.megadrum.info/content/miscellaneous-settings but I probably should list explicitly those settings which I saved only only upon the exit from the menu?

Thank you for your answer Dmitri,
I can imagine you have a hard time keeping all your documentation up to date, and yes I have found, now you have pushed me in the right direction, that MIDI speed setting is saved only upon the exit from the menu, it is confusing, why not save all settings on "save Config" who cares?

I have an other question, I have made my latest changes because you have changed the function of MIDI speed, MD Could communicate about 8 times faster with the host over USB, which reduces latency, I like low latency
This is because "(I think) you increased the serial speed between Atmega and PIC.
Shoulnd't loading times in MDM for "Get all" be 8 times quicker?
I don't see a difference !

Kind regards,
Rob

[dmitri]

Thank you for your answer Dmitri,
I can imagine you have a hard time keeping all your documentation up to date, and yes I have found, now you have pushed me in the right direction, that MIDI speed setting is saved only upon the exit from the menu, it is confusing, why not save all settings on "save Config" who cares?

Saving some settings separate from the Configs/Drum maps is done for a reason. E.g. for AutoLoadConf or AltEncoders it is obvious. For different MaxInputs values the memory placement in EEPROM for Configs/Drum map slots is different, so to know which EEPROM address to load from/save to Config 2 this EEPROM address must be calculated from MaxInputs and the number of Config/Drum maps is also dependant on MaxInputs.

I have an other question, I have made my latest changes because you have changed the function of MIDI speed, MD Could communicate about 8 times faster with the host over USB, which reduces latency, I like low latency
This is because "(I think) you increased the serial speed between Atmega and PIC.
Shoulnd't loading times in MDM for "Get all" be 8 times quicker?

No, for several different reasons. The main reason among these is that the most of the latency is still contributed by a PC. See viewtopic.php?p=18036#p18036

[engmarcos5]

Hi Dmitri,

If I use the programming via ICSP or ICS, I need the bootloader installed on the ATMEGA?
The firmware version is different for this case?

Thanks

[dmitri]

Hi Dmitri,

If I use the programming via ICSP or ICS, I need the bootloader installed on the ATMEGA?

No.

The firmware version is different for this case?

Yes.

[engmarcos5]

Hi Dmitri,

Thanks for the reply.
I sent a private message by ordering two units ATMEGA ok?

Thank you for your attention.

[exzibith]

Hi Dmitri,
can you help me, i am DIYer`s from indonesia...
can you show me download link about old firmware like ATmega32 32 input with 16 and 20MHz clock... the latest firmware version didn`t have ATmega32 or 324, just any ATmega644 56 Input.
I want DI myself of Megadrum for my son...
and can you explain what is Megadrum with protected bootloader???
Can I buy ATMega32 by myself in indonesia, and then i download firmware from your forum by my self???

sorry i`m bad in english...

Thanks b4...

[dmitri]

Hi Dmitri,
can you help me, i am DIYer`s from indonesia...
can you show me download link about old firmware like ATmega32 32 input with 16 and 20MHz clock... the latest firmware version didn`t have ATmega32 or 324, just any ATmega644 56 Input.

You have to read MegaDrum FAQ. Read it before posting in this forum! first.

I want DI myself of Megadrum for my son...
and can you explain what is Megadrum with protected bootloader???

The reference to the explanation is in the very first post of this topic.

Can I buy ATMega32 by myself in indonesia, and then i download firmware from your forum by my self???

Yes for the last unencrypted firmware version and no for any newer.

[exzibith]

Hi Dmitri,
Newbies have question again:
1. How if i build MD PCB v2.7 all in one, but i use ATMEGA644 and PIC18F2550, does it work/ compatible for MD v2.7 all in one or (can i use ATMEGA644-20PU for MD PCB v2.7 all in one)??

2. Where can I download firmware with protected bootloader for ATMEGA644?? does is it the site http://www.megadrum.info/forums/download/file.php?id=2550 from this forum http://www.megadrum.info/forums/viewtopic.php?f=3&t=1075

3. Does the latest firmware at http://www.megadrum.info/forums/download/file.php?id=2550, compatible firmware for ATMEGA32???

4. Can i download last unencrypted firmware MD into ATMEGA32 or ATMEGA644 from this link http://www.megadrum.info/forums/download/file.php?id=2094 from this forum http://www.megadrum.info/forums/viewtopic.php?p=12683#p12683 and then i upgrade again with newer version or latest version of firmware???

Thanx b4 for your attention....

[dmitri]

Hi Dmitri,
Newbies have question again:
1. How if i build MD PCB v2.7 all in one, but i use ATMEGA644 and PIC18F2550, does it work/ compatible for v2.7 or (can i use ATMEGA644-20PU for MD PCB v2.7 all in one)??

Atmega32, 324, 644 are pin compatible so any them can be used in MegaDrum boards.

2. Where can I download firmware with protected bootloader for ATMEGA644?? does is it the site http://www.megadrum.info/forums/download/file.php?id=2550 from this forum http://www.megadrum.info/forums/viewtopic.php?f=3&t=1075

You cannot download the protected bootloader.

3. Does the latest firmware at http://www.megadrum.info/forums/download/file.php?id=2550, compatible firmware for ATMEGA32???

No.

4. Can i download firmware into ATMEGA32 or ATMEGA644 from this link http://www.megadrum.info/forums/download/file.php?id=2094 from this forum http://www.megadrum.info/forums/viewtopic.php?p=12683#p12683 and i upgrade again with newer version of firmware???

You don't have the protected bootloader so the answer is No.

[exzibith]

Hi Dmitri,
Newbies have question again:
1. How if i build MD PCB v2.7 all in one, but i use ATMEGA644 and PIC18F2550, does it work/ compatible for v2.7 or (can i use ATMEGA644-20PU for MD PCB v2.7 all in one)??

Atmega32, 324, 644 are pin compatible so any them can be used in MegaDrum boards.

2. Where can I download firmware with protected bootloader for ATMEGA644?? does is it the site http://www.megadrum.info/forums/download/file.php?id=2550 from this forum http://www.megadrum.info/forums/viewtopic.php?f=3&t=1075

You cannot download the protected bootloader.

3. Does the latest firmware at http://www.megadrum.info/forums/download/file.php?id=2550, compatible firmware for ATMEGA32???

No.

4. Can i download firmware into ATMEGA32 or ATMEGA644 from this link http://www.megadrum.info/forums/download/file.php?id=2094 from this forum http://www.megadrum.info/forums/viewtopic.php?p=12683#p12683 and i upgrade again with newer version of firmware???

You don't have the protected bootloader so the answer is No.

Sorry if i give more question,
So if i am completed build my Megadrum PCB, and install components... I can't try my DIY megadrum module?? So I have to buy chips ATMEGA32/324/644 with protected bootloader just from you,
but i have USB-ISP Downloader Module for download ATMEGA32, how if i download my ATMEGA32 with last unencrypted firmware version [http://www.megadrum.info/forums/download/file.php?id=2094], does my MegaDrum it work???